What is NVIDIA-NVLDDMKM-CRITICAL?
A critical failure in the NVIDIA kernel-mode display driver (nvlddmkm.sys). This is more severe than a standard TDR event — the driver cannot recover and triggers a system BSOD. This commonly occurs with corrupt driver installations, hardware memory errors in VRAM, or PCIe power delivery issues.
Common Causes
- Corrupt NVIDIA driver installation
- VRAM hardware fault
- Inadequate PCIe power connector
Step-by-Step Fix Guide
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1
DDU clean driver removal in Safe Mode
A clean DDU reinstall resolves driver corruption issues in most cases.
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2
Reseat PCIe power connectors
If the error persists after clean install, hardware VRAM testing is required.
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3
Run OCCT VRAM stress test
Commands & Diagnostics
bcdedit /set safeboot minimalStill Need Help?
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